From 244b2c5ca8b14627e4a17755e5922221e121c771 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 09 Oct 2024 06:15:07 +0000
Subject: [PATCH] change system file

---
 kernel/drivers/gpu/drm/meson/meson_plane.c |  482 ++++++++++++++++++++++++++++++++++++++++++++---------
 1 files changed, 399 insertions(+), 83 deletions(-)

diff --git a/kernel/drivers/gpu/drm/meson/meson_plane.c b/kernel/drivers/gpu/drm/meson/meson_plane.c
index c7daae5..255c6b8 100644
--- a/kernel/drivers/gpu/drm/meson/meson_plane.c
+++ b/kernel/drivers/gpu/drm/meson/meson_plane.c
@@ -1,49 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Copyright (C) 2016 BayLibre, SAS
  * Author: Neil Armstrong <narmstrong@baylibre.com>
  * Copyright (C) 2015 Amlogic, Inc. All rights reserved.
  * Copyright (C) 2014 Endless Mobile
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- *
  * Written by:
  *     Jasper St. Pierre <jstpierre@mecheye.net>
  */
 
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/platform_device.h>
-#include <drm/drmP.h>
+#include <linux/bitfield.h>
+
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
-#include <drm/drm_plane_helper.h>
-#include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_device.h>
 #include <drm/drm_fb_cma_helper.h>
-#include <drm/drm_rect.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_plane_helper.h>
 
 #include "meson_plane.h"
-#include "meson_vpp.h"
-#include "meson_viu.h"
-#include "meson_canvas.h"
 #include "meson_registers.h"
+#include "meson_viu.h"
+#include "meson_osd_afbcd.h"
+
+/* OSD_SCI_WH_M1 */
+#define SCI_WH_M1_W(w)			FIELD_PREP(GENMASK(28, 16), w)
+#define SCI_WH_M1_H(h)			FIELD_PREP(GENMASK(12, 0), h)
+
+/* OSD_SCO_H_START_END */
+/* OSD_SCO_V_START_END */
+#define SCO_HV_START(start)		FIELD_PREP(GENMASK(27, 16), start)
+#define SCO_HV_END(end)			FIELD_PREP(GENMASK(11, 0), end)
+
+/* OSD_SC_CTRL0 */
+#define SC_CTRL0_PATH_EN		BIT(3)
+#define SC_CTRL0_SEL_OSD1		BIT(2)
+
+/* OSD_VSC_CTRL0 */
+#define VSC_BANK_LEN(value)		FIELD_PREP(GENMASK(2, 0), value)
+#define VSC_TOP_INI_RCV_NUM(value)	FIELD_PREP(GENMASK(6, 3), value)
+#define VSC_TOP_RPT_L0_NUM(value)	FIELD_PREP(GENMASK(9, 8), value)
+#define VSC_BOT_INI_RCV_NUM(value)	FIELD_PREP(GENMASK(14, 11), value)
+#define VSC_BOT_RPT_L0_NUM(value)	FIELD_PREP(GENMASK(17, 16), value)
+#define VSC_PROG_INTERLACE		BIT(23)
+#define VSC_VERTICAL_SCALER_EN		BIT(24)
+
+/* OSD_VSC_INI_PHASE */
+#define VSC_INI_PHASE_BOT(bottom)	FIELD_PREP(GENMASK(31, 16), bottom)
+#define VSC_INI_PHASE_TOP(top)		FIELD_PREP(GENMASK(15, 0), top)
+
+/* OSD_HSC_CTRL0 */
+#define HSC_BANK_LENGTH(value)		FIELD_PREP(GENMASK(2, 0), value)
+#define HSC_INI_RCV_NUM0(value)		FIELD_PREP(GENMASK(6, 3), value)
+#define HSC_RPT_P0_NUM0(value)		FIELD_PREP(GENMASK(9, 8), value)
+#define HSC_HORIZ_SCALER_EN		BIT(22)
+
+/* VPP_OSD_VSC_PHASE_STEP */
+/* VPP_OSD_HSC_PHASE_STEP */
+#define SC_PHASE_STEP(value)		FIELD_PREP(GENMASK(27, 0), value)
 
 struct meson_plane {
 	struct drm_plane base;
 	struct meson_drm *priv;
+	bool enabled;
 };
 #define to_meson_plane(x) container_of(x, struct meson_plane, base)
+
+#define FRAC_16_16(mult, div)    (((mult) << 16) / (div))
 
 static int meson_plane_atomic_check(struct drm_plane *plane,
 				    struct drm_plane_state *state)
@@ -57,11 +82,22 @@
 	if (IS_ERR(crtc_state))
 		return PTR_ERR(crtc_state);
 
+	/*
+	 * Only allow :
+	 * - Upscaling up to 5x, vertical and horizontal
+	 * - Final coordinates must match crtc size
+	 */
 	return drm_atomic_helper_check_plane_state(state, crtc_state,
+						   FRAC_16_16(1, 5),
 						   DRM_PLANE_HELPER_NO_SCALING,
-						   DRM_PLANE_HELPER_NO_SCALING,
-						   true, true);
+						   false, true);
 }
+
+#define MESON_MOD_AFBC_VALID_BITS (AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |	\
+				   AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |	\
+				   AFBC_FORMAT_MOD_YTR |		\
+				   AFBC_FORMAT_MOD_SPARSE |		\
+				   AFBC_FORMAT_MOD_SPLIT)
 
 /* Takes a fixed 16.16 number and converts it to integer. */
 static inline int64_t fixed16_to_int(int64_t value)
@@ -69,27 +105,45 @@
 	return value >> 16;
 }
 
+static u32 meson_g12a_afbcd_line_stride(struct meson_drm *priv)
+{
+	u32 line_stride = 0;
+
+	switch (priv->afbcd.format) {
+	case DRM_FORMAT_RGB565:
+		line_stride = ((priv->viu.osd1_width << 4) + 127) >> 7;
+		break;
+	case DRM_FORMAT_RGB888:
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_ARGB8888:
+	case DRM_FORMAT_XBGR8888:
+	case DRM_FORMAT_ABGR8888:
+		line_stride = ((priv->viu.osd1_width << 5) + 127) >> 7;
+		break;
+	}
+
+	return ((line_stride + 1) >> 1) << 1;
+}
+
 static void meson_plane_atomic_update(struct drm_plane *plane,
 				      struct drm_plane_state *old_state)
 {
 	struct meson_plane *meson_plane = to_meson_plane(plane);
 	struct drm_plane_state *state = plane->state;
-	struct drm_framebuffer *fb = state->fb;
+	struct drm_rect dest = drm_plane_state_dest(state);
 	struct meson_drm *priv = meson_plane->priv;
+	struct drm_framebuffer *fb = state->fb;
 	struct drm_gem_cma_object *gem;
-	struct drm_rect src = {
-		.x1 = (state->src_x),
-		.y1 = (state->src_y),
-		.x2 = (state->src_x + state->src_w),
-		.y2 = (state->src_y + state->src_h),
-	};
-	struct drm_rect dest = {
-		.x1 = state->crtc_x,
-		.y1 = state->crtc_y,
-		.x2 = state->crtc_x + state->crtc_w,
-		.y2 = state->crtc_y + state->crtc_h,
-	};
 	unsigned long flags;
+	int vsc_ini_rcv_num, vsc_ini_rpt_p0_num;
+	int vsc_bot_rcv_num, vsc_bot_rpt_p0_num;
+	int hsc_ini_rcv_num, hsc_ini_rpt_p0_num;
+	int hf_phase_step, vf_phase_step;
+	int src_w, src_h, dst_w, dst_h;
+	int bot_ini_phase;
+	int hf_bank_len;
+	int vf_bank_len;
+	u8 canvas_id_osd1;
 
 	/*
 	 * Update Coordinates
@@ -99,77 +153,210 @@
 	 */
 	spin_lock_irqsave(&priv->drm->event_lock, flags);
 
+	/* Check if AFBC decoder is required for this buffer */
+	if ((meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
+	     meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) &&
+	    fb->modifier & DRM_FORMAT_MOD_ARM_AFBC(MESON_MOD_AFBC_VALID_BITS))
+		priv->viu.osd1_afbcd = true;
+	else
+		priv->viu.osd1_afbcd = false;
+
 	/* Enable OSD and BLK0, set max global alpha */
 	priv->viu.osd1_ctrl_stat = OSD_ENABLE |
-				   (0xFF << OSD_GLOBAL_ALPHA_SHIFT) |
+				   (0x100 << OSD_GLOBAL_ALPHA_SHIFT) |
 				   OSD_BLK0_ENABLE;
 
+	priv->viu.osd1_ctrl_stat2 = readl(priv->io_base +
+					  _REG(VIU_OSD1_CTRL_STAT2));
+
+	canvas_id_osd1 = priv->canvas_id_osd1;
+
 	/* Set up BLK0 to point to the right canvas */
-	priv->viu.osd1_blk0_cfg[0] = ((MESON_CANVAS_ID_OSD1 << OSD_CANVAS_SEL) |
-				      OSD_ENDIANNESS_LE);
+	priv->viu.osd1_blk0_cfg[0] = canvas_id_osd1 << OSD_CANVAS_SEL;
+
+	if (priv->viu.osd1_afbcd) {
+		if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) {
+			/* This is the internal decoding memory address */
+			priv->viu.osd1_blk1_cfg4 = MESON_G12A_AFBCD_OUT_ADDR;
+			priv->viu.osd1_blk0_cfg[0] |= OSD_ENDIANNESS_BE;
+			priv->viu.osd1_ctrl_stat2 |= OSD_PENDING_STAT_CLEAN;
+			priv->viu.osd1_ctrl_stat |= VIU_OSD1_CFG_SYN_EN;
+		}
+
+		if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM)) {
+			priv->viu.osd1_blk0_cfg[0] |= OSD_ENDIANNESS_LE;
+			priv->viu.osd1_ctrl_stat2 |= OSD_DPATH_MALI_AFBCD;
+		}
+	} else {
+		priv->viu.osd1_blk0_cfg[0] |= OSD_ENDIANNESS_LE;
+
+		if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM))
+			priv->viu.osd1_ctrl_stat2 &= ~OSD_DPATH_MALI_AFBCD;
+	}
 
 	/* On GXBB, Use the old non-HDR RGB2YUV converter */
-	if (meson_vpu_is_compatible(priv, "amlogic,meson-gxbb-vpu"))
+	if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXBB))
 		priv->viu.osd1_blk0_cfg[0] |= OSD_OUTPUT_COLOR_RGB;
+
+	if (priv->viu.osd1_afbcd &&
+	    meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) {
+		priv->viu.osd1_blk0_cfg[0] |= OSD_MALI_SRC_EN |
+			priv->afbcd.ops->fmt_to_blk_mode(fb->modifier,
+							  fb->format->format);
+	} else {
+		switch (fb->format->format) {
+		case DRM_FORMAT_XRGB8888:
+		case DRM_FORMAT_ARGB8888:
+			priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
+						OSD_COLOR_MATRIX_32_ARGB;
+			break;
+		case DRM_FORMAT_XBGR8888:
+		case DRM_FORMAT_ABGR8888:
+			priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
+						OSD_COLOR_MATRIX_32_ABGR;
+			break;
+		case DRM_FORMAT_RGB888:
+			priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_24 |
+						OSD_COLOR_MATRIX_24_RGB;
+			break;
+		case DRM_FORMAT_RGB565:
+			priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_16 |
+						OSD_COLOR_MATRIX_16_RGB565;
+			break;
+		}
+	}
 
 	switch (fb->format->format) {
 	case DRM_FORMAT_XRGB8888:
-		/* For XRGB, replace the pixel's alpha by 0xFF */
-		writel_bits_relaxed(OSD_REPLACE_EN, OSD_REPLACE_EN,
-				    priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
-		priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
-					      OSD_COLOR_MATRIX_32_ARGB;
-		break;
 	case DRM_FORMAT_XBGR8888:
 		/* For XRGB, replace the pixel's alpha by 0xFF */
-		writel_bits_relaxed(OSD_REPLACE_EN, OSD_REPLACE_EN,
-				    priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
-		priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
-					      OSD_COLOR_MATRIX_32_ABGR;
+		priv->viu.osd1_ctrl_stat2 |= OSD_REPLACE_EN;
 		break;
 	case DRM_FORMAT_ARGB8888:
-		/* For ARGB, use the pixel's alpha */
-		writel_bits_relaxed(OSD_REPLACE_EN, 0,
-				    priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
-		priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
-					      OSD_COLOR_MATRIX_32_ARGB;
-		break;
 	case DRM_FORMAT_ABGR8888:
 		/* For ARGB, use the pixel's alpha */
-		writel_bits_relaxed(OSD_REPLACE_EN, 0,
-				    priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
-		priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
-					      OSD_COLOR_MATRIX_32_ABGR;
+		priv->viu.osd1_ctrl_stat2 &= ~OSD_REPLACE_EN;
 		break;
-	case DRM_FORMAT_RGB888:
-		priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_24 |
-					      OSD_COLOR_MATRIX_24_RGB;
-		break;
-	case DRM_FORMAT_RGB565:
-		priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_16 |
-					      OSD_COLOR_MATRIX_16_RGB565;
-		break;
-	};
+	}
+
+	/* Default scaler parameters */
+	vsc_bot_rcv_num = 0;
+	vsc_bot_rpt_p0_num = 0;
+	hf_bank_len = 4;
+	vf_bank_len = 4;
 
 	if (state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE) {
-		priv->viu.osd1_interlace = true;
+		vsc_bot_rcv_num = 6;
+		vsc_bot_rpt_p0_num = 2;
+	}
 
+	hsc_ini_rcv_num = hf_bank_len;
+	vsc_ini_rcv_num = vf_bank_len;
+	hsc_ini_rpt_p0_num = (hf_bank_len / 2) - 1;
+	vsc_ini_rpt_p0_num = (vf_bank_len / 2) - 1;
+
+	src_w = fixed16_to_int(state->src_w);
+	src_h = fixed16_to_int(state->src_h);
+	dst_w = state->crtc_w;
+	dst_h = state->crtc_h;
+
+	/*
+	 * When the output is interlaced, the OSD must switch between
+	 * each field using the INTERLACE_SEL_ODD (0) of VIU_OSD1_BLK0_CFG_W0
+	 * at each vsync.
+	 * But the vertical scaler can provide such funtionnality if
+	 * is configured for 2:1 scaling with interlace options enabled.
+	 */
+	if (state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE) {
 		dest.y1 /= 2;
 		dest.y2 /= 2;
-	} else
-		priv->viu.osd1_interlace = false;
+		dst_h /= 2;
+	}
+
+	hf_phase_step = ((src_w << 18) / dst_w) << 6;
+	vf_phase_step = (src_h << 20) / dst_h;
+
+	if (state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE)
+		bot_ini_phase = ((vf_phase_step / 2) >> 4);
+	else
+		bot_ini_phase = 0;
+
+	vf_phase_step = (vf_phase_step << 4);
+
+	/* In interlaced mode, scaler is always active */
+	if (src_h != dst_h || src_w != dst_w) {
+		priv->viu.osd_sc_i_wh_m1 = SCI_WH_M1_W(src_w - 1) |
+					   SCI_WH_M1_H(src_h - 1);
+		priv->viu.osd_sc_o_h_start_end = SCO_HV_START(dest.x1) |
+						 SCO_HV_END(dest.x2 - 1);
+		priv->viu.osd_sc_o_v_start_end = SCO_HV_START(dest.y1) |
+						 SCO_HV_END(dest.y2 - 1);
+		/* Enable OSD Scaler */
+		priv->viu.osd_sc_ctrl0 = SC_CTRL0_PATH_EN | SC_CTRL0_SEL_OSD1;
+	} else {
+		priv->viu.osd_sc_i_wh_m1 = 0;
+		priv->viu.osd_sc_o_h_start_end = 0;
+		priv->viu.osd_sc_o_v_start_end = 0;
+		priv->viu.osd_sc_ctrl0 = 0;
+	}
+
+	/* In interlaced mode, vertical scaler is always active */
+	if (src_h != dst_h) {
+		priv->viu.osd_sc_v_ctrl0 =
+					VSC_BANK_LEN(vf_bank_len) |
+					VSC_TOP_INI_RCV_NUM(vsc_ini_rcv_num) |
+					VSC_TOP_RPT_L0_NUM(vsc_ini_rpt_p0_num) |
+					VSC_VERTICAL_SCALER_EN;
+
+		if (state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE)
+			priv->viu.osd_sc_v_ctrl0 |=
+					VSC_BOT_INI_RCV_NUM(vsc_bot_rcv_num) |
+					VSC_BOT_RPT_L0_NUM(vsc_bot_rpt_p0_num) |
+					VSC_PROG_INTERLACE;
+
+		priv->viu.osd_sc_v_phase_step = SC_PHASE_STEP(vf_phase_step);
+		priv->viu.osd_sc_v_ini_phase = VSC_INI_PHASE_BOT(bot_ini_phase);
+	} else {
+		priv->viu.osd_sc_v_ctrl0 = 0;
+		priv->viu.osd_sc_v_phase_step = 0;
+		priv->viu.osd_sc_v_ini_phase = 0;
+	}
+
+	/* Horizontal scaler is only used if width does not match */
+	if (src_w != dst_w) {
+		priv->viu.osd_sc_h_ctrl0 =
+					HSC_BANK_LENGTH(hf_bank_len) |
+					HSC_INI_RCV_NUM0(hsc_ini_rcv_num) |
+					HSC_RPT_P0_NUM0(hsc_ini_rpt_p0_num) |
+					HSC_HORIZ_SCALER_EN;
+		priv->viu.osd_sc_h_phase_step = SC_PHASE_STEP(hf_phase_step);
+		priv->viu.osd_sc_h_ini_phase = 0;
+	} else {
+		priv->viu.osd_sc_h_ctrl0 = 0;
+		priv->viu.osd_sc_h_phase_step = 0;
+		priv->viu.osd_sc_h_ini_phase = 0;
+	}
 
 	/*
 	 * The format of these registers is (x2 << 16 | x1),
 	 * where x2 is exclusive.
 	 * e.g. +30x1920 would be (1919 << 16) | 30
 	 */
-	priv->viu.osd1_blk0_cfg[1] = ((fixed16_to_int(src.x2) - 1) << 16) |
-					fixed16_to_int(src.x1);
-	priv->viu.osd1_blk0_cfg[2] = ((fixed16_to_int(src.y2) - 1) << 16) |
-					fixed16_to_int(src.y1);
+	priv->viu.osd1_blk0_cfg[1] =
+				((fixed16_to_int(state->src.x2) - 1) << 16) |
+				fixed16_to_int(state->src.x1);
+	priv->viu.osd1_blk0_cfg[2] =
+				((fixed16_to_int(state->src.y2) - 1) << 16) |
+				fixed16_to_int(state->src.y1);
 	priv->viu.osd1_blk0_cfg[3] = ((dest.x2 - 1) << 16) | dest.x1;
 	priv->viu.osd1_blk0_cfg[4] = ((dest.y2 - 1) << 16) | dest.y1;
+
+	if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) {
+		priv->viu.osd_blend_din0_scope_h = ((dest.x2 - 1) << 16) | dest.x1;
+		priv->viu.osd_blend_din0_scope_v = ((dest.y2 - 1) << 16) | dest.y1;
+		priv->viu.osb_blend0_size = dst_h << 16 | dst_w;
+		priv->viu.osb_blend1_size = dst_h << 16 | dst_w;
+	}
 
 	/* Update Canvas with buffer address */
 	gem = drm_fb_cma_get_gem_obj(fb, 0);
@@ -177,6 +364,28 @@
 	priv->viu.osd1_addr = gem->paddr;
 	priv->viu.osd1_stride = fb->pitches[0];
 	priv->viu.osd1_height = fb->height;
+	priv->viu.osd1_width = fb->width;
+
+	if (priv->viu.osd1_afbcd) {
+		priv->afbcd.modifier = fb->modifier;
+		priv->afbcd.format = fb->format->format;
+
+		/* Calculate decoder write stride */
+		if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
+			priv->viu.osd1_blk2_cfg4 =
+				meson_g12a_afbcd_line_stride(priv);
+	}
+
+	if (!meson_plane->enabled) {
+		/* Reset OSD1 before enabling it on GXL+ SoCs */
+		if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
+		    meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXL))
+			meson_viu_osd1_reset(priv);
+
+		meson_plane->enabled = true;
+	}
+
+	priv->viu.osd1_enabled = true;
 
 	spin_unlock_irqrestore(&priv->drm->event_lock, flags);
 }
@@ -187,17 +396,65 @@
 	struct meson_plane *meson_plane = to_meson_plane(plane);
 	struct meson_drm *priv = meson_plane->priv;
 
-	/* Disable OSD1 */
-	writel_bits_relaxed(VPP_OSD1_POSTBLEND, 0,
-			    priv->io_base + _REG(VPP_MISC));
+	if (priv->afbcd.ops) {
+		priv->afbcd.ops->reset(priv);
+		priv->afbcd.ops->disable(priv);
+	}
 
+	/* Disable OSD1 */
+	if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
+		writel_bits_relaxed(VIU_OSD1_POSTBLD_SRC_OSD1, 0,
+				    priv->io_base + _REG(OSD1_BLEND_SRC_CTRL));
+	else
+		writel_bits_relaxed(VPP_OSD1_POSTBLEND, 0,
+				    priv->io_base + _REG(VPP_MISC));
+
+	meson_plane->enabled = false;
+	priv->viu.osd1_enabled = false;
 }
 
 static const struct drm_plane_helper_funcs meson_plane_helper_funcs = {
 	.atomic_check	= meson_plane_atomic_check,
 	.atomic_disable	= meson_plane_atomic_disable,
 	.atomic_update	= meson_plane_atomic_update,
+	.prepare_fb	= drm_gem_fb_prepare_fb,
 };
+
+static bool meson_plane_format_mod_supported(struct drm_plane *plane,
+					     u32 format, u64 modifier)
+{
+	struct meson_plane *meson_plane = to_meson_plane(plane);
+	struct meson_drm *priv = meson_plane->priv;
+	int i;
+
+	if (modifier == DRM_FORMAT_MOD_INVALID)
+		return false;
+
+	if (modifier == DRM_FORMAT_MOD_LINEAR)
+		return true;
+
+	if (!meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) &&
+	    !meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
+		return false;
+
+	if (modifier & ~DRM_FORMAT_MOD_ARM_AFBC(MESON_MOD_AFBC_VALID_BITS))
+		return false;
+
+	for (i = 0 ; i < plane->modifier_count ; ++i)
+		if (plane->modifiers[i] == modifier)
+			break;
+
+	if (i == plane->modifier_count) {
+		DRM_DEBUG_KMS("Unsupported modifier\n");
+		return false;
+	}
+
+	if (priv->afbcd.ops && priv->afbcd.ops->supported_fmt)
+		return priv->afbcd.ops->supported_fmt(modifier, format);
+
+	DRM_DEBUG_KMS("AFBC Unsupported\n");
+	return false;
+}
 
 static const struct drm_plane_funcs meson_plane_funcs = {
 	.update_plane		= drm_atomic_helper_update_plane,
@@ -206,6 +463,7 @@
 	.reset			= drm_atomic_helper_plane_reset,
 	.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 	.atomic_destroy_state	= drm_atomic_helper_plane_destroy_state,
+	.format_mod_supported   = meson_plane_format_mod_supported,
 };
 
 static const uint32_t supported_drm_formats[] = {
@@ -217,10 +475,60 @@
 	DRM_FORMAT_RGB565,
 };
 
+static const uint64_t format_modifiers_afbc_gxm[] = {
+	DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |
+				AFBC_FORMAT_MOD_SPARSE |
+				AFBC_FORMAT_MOD_YTR),
+	/* SPLIT mandates SPARSE, RGB modes mandates YTR */
+	DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |
+				AFBC_FORMAT_MOD_YTR |
+				AFBC_FORMAT_MOD_SPARSE |
+				AFBC_FORMAT_MOD_SPLIT),
+	DRM_FORMAT_MOD_LINEAR,
+	DRM_FORMAT_MOD_INVALID,
+};
+
+static const uint64_t format_modifiers_afbc_g12a[] = {
+	/*
+	 * - TOFIX Support AFBC modifiers for YUV formats (16x16 + TILED)
+	 * - SPLIT is mandatory for performances reasons when in 16x16
+	 *   block size
+	 * - 32x8 block size + SPLIT is mandatory with 4K frame size
+	 *   for performances reasons
+	 */
+	DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |
+				AFBC_FORMAT_MOD_SPARSE |
+				AFBC_FORMAT_MOD_SPLIT),
+	DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |
+				AFBC_FORMAT_MOD_YTR |
+				AFBC_FORMAT_MOD_SPARSE |
+				AFBC_FORMAT_MOD_SPLIT),
+	DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
+				AFBC_FORMAT_MOD_SPARSE),
+	DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
+				AFBC_FORMAT_MOD_YTR |
+				AFBC_FORMAT_MOD_SPARSE),
+	DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
+				AFBC_FORMAT_MOD_SPARSE |
+				AFBC_FORMAT_MOD_SPLIT),
+	DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
+				AFBC_FORMAT_MOD_YTR |
+				AFBC_FORMAT_MOD_SPARSE |
+				AFBC_FORMAT_MOD_SPLIT),
+	DRM_FORMAT_MOD_LINEAR,
+	DRM_FORMAT_MOD_INVALID,
+};
+
+static const uint64_t format_modifiers_default[] = {
+	DRM_FORMAT_MOD_LINEAR,
+	DRM_FORMAT_MOD_INVALID,
+};
+
 int meson_plane_create(struct meson_drm *priv)
 {
 	struct meson_plane *meson_plane;
 	struct drm_plane *plane;
+	const uint64_t *format_modifiers = format_modifiers_default;
 
 	meson_plane = devm_kzalloc(priv->drm->dev, sizeof(*meson_plane),
 				   GFP_KERNEL);
@@ -230,15 +538,23 @@
 	meson_plane->priv = priv;
 	plane = &meson_plane->base;
 
+	if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM))
+		format_modifiers = format_modifiers_afbc_gxm;
+	else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
+		format_modifiers = format_modifiers_afbc_g12a;
+
 	drm_universal_plane_init(priv->drm, plane, 0xFF,
 				 &meson_plane_funcs,
 				 supported_drm_formats,
 				 ARRAY_SIZE(supported_drm_formats),
-				 NULL,
+				 format_modifiers,
 				 DRM_PLANE_TYPE_PRIMARY, "meson_primary_plane");
 
 	drm_plane_helper_add(plane, &meson_plane_helper_funcs);
 
+	/* For now, OSD Primary plane is always on the front */
+	drm_plane_create_zpos_immutable_property(plane, 1);
+
 	priv->primary_plane = plane;
 
 	return 0;

--
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